From Amazon’s point of view, I could see this as a “why wouldn’t we” situation. They can squeeze both ends of the pipeline (customers and authors) now that the ebook gold rush is mostly over.

Yes, I may be a little biased in my opinion, and I am open to being proved wrong, but I really do think that KDP Select is becoming less about selling ebooks, and more about taking money from self published authors’ already lean pockets. §